July 2007 - Darwin-dev - lists.apple.com

RE: Illegal Instruction (Norm Green)
by Heidi Zhou 09 Jul '07

09 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=DxeLs8XrrMYS0hWF2LZ1YuZ6ZFp8Mum3qGc4ffBnyNucmsnYMiuHnNibsfAMBSgV1lwvgwcmCeqBpn3KRiTSPriRJMi4HcxVqA4c7gcPAL96DkJp5EQA/vxHDTx5+JOyj8JcE0IxnA6rLxe8+Gj8SWDadvrkMCI1QtbkagoGrIU=; Norm, Thank you for the help. Your suggestion works! Now, I extend my test program to generate a dynamic library. However, when I use g++ to link, I got the following error $ g++ -g -Wall -dylib bin_osx/osServDarwin.o bin_osx/utilsDarwin.o bin_osx/nlstrDarwin.o bin_osx/nlthreadDarwin.o bin_osx/nlthreadpool.o -o bin_osx/libcebrain.dylib -lpthread -liconv /usr/bin/ld: Undefined symbols: _main collect2: ld returned 1 exit status Could you tell me if where I did wrong again? Under this case, do I have to use ld instead? (Hope not, otherwise, it is hassle to write my general makefile to specify what linker used for dynamic library and for executable differently.) Thank you. Heidi Heidi ~~ Life is a song of my heart. ~~ http://photos.yahoo.com/heidi_zhou ____________________________________________________________________________________ Luggage? GPS? Comic books? Check out fitting gifts for grads at Yahoo! Search http://search.yahoo.com/search?fr=oni_on_mail&p=graduation+gifts&cs=bz _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Illegal Instruction
by Justin C. Walker 09 Jul '07

09 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Jul 9, 2007, at 11:58 , Norm Green wrote: Justin -- Justin C. Walker, Curmudgeon at Large Institute for the Absorption of Federal Funds ----------- I'm beginning to like the cut of his jibberish. ----------- _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Not sure if this is related, but you should link using g++ rather than ld. You also should link with -lc, but you won't need to link with -lstdc++.6 -lgcc_s.1 if you use g++ for linking (it will automatically specify those). Your comment is certainly correct. Even if it's not the complete solution, Heidi won't get a running c++ program without the proper link command, and it's almost always best to let the compiler sort this out and invoke the linker correctly. FWIW, I don't think "-lc" is needed in general. The 'C' library is automatically included if you let the compiler do the linking... This email sent to site_archiver(a)lists.apple.com

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Re: open() fails to update st_mtime when used with O_TRUNC and 0 byte files
by Mike Frysinger 09 Jul '07

09 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=F4vFIY3WdX8ZtXzBs/S2zVfyjyEoppFW3HOXGL+dU6A5b4gnwCfevyTF2M3/SURbMQ1tyDXOonpkOtmuuo/nzKpw8rbG9hFyfU5qYbdEdO7M5E4BaQGLarUWugtuwF4/l10K/NIEa6ipQiwcIcACTGaWWJOHiE8Ge+gBXE4/+ho= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=M89N9XQD+r9ZRbVgv0mai6tzsvUvDnd7ROOPTyqOsLswODi4Sin8xEx6ejhIXZ3iS2jG//w71sAAQ6sYKW+XkbiNudzvvra6YCHC8LRjHgevbHnCy70yWShDZYw9QV9fBp49rERgpRnt3MJdZxhY1DiVHa/iBNrk4ZM2mFrHucc= On 7/9/07, Mike Frysinger <vapier.adi(a)gmail.com> wrote: > On 6/12/07, Mike Frysinger <vapier.adi(a)gmail.com> wrote: > > i was tracking down a bug in the Linux kernel build system which seems > > to be caused by a bug in Darwin. the kernel build system creates a > > bunch of 0 byte files and then uses open(O_TRUNC) on them in order to > > update the st_mtime field (which triggers make to recreate some object > > files). on my mac mini, this all falls apart. > > is there somewhere i can file a bug report about this ? i'm really > not familiar with Darwin development methodologies thanks, ive posted it there as #5322203 -mike _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… On 7/9/07, Shawn Erickson <shawnce(a)gmail.com> wrote: <http://developer.apple.com/bugreporter/> This email sent to site_archiver(a)lists.apple.com

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Re: open() fails to update st_mtime when used with O_TRUNC and 0 byte files
by Shawn Erickson 09 Jul '07

09 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=dF5VFrzo9q6IbZ+I7fXKC+Zl56aiIdwswCpne7Q/og3OsJGzB9UVHHu/6lSehjmO2bcmyeCD1YXvNRaFQimFecZdDX+gwxm1u8tZNbDBahYMiQLX4CYNjc2pHYG0Hd3mqf0d8CehXk7wTM1SQmoIJr298JsVKeZwQt7O/FCZQXI= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=KidpgtSXuA/+ZHVTNaUKofsk4Ep3KaKuPfQkuMp2t31hOh58aIcZJbVegIGTF6tkkjkawpurZy+te9gTJ31QFTRQQAuMjD6PUwk7RLHL6J+DDFEHxcdZ/uoOJE9b2xL0DDwLSAW+bi3kXCquZUvFdYIPnFlFubTEw9NBkLuXnQ8= On 6/12/07, Mike Frysinger <vapier.adi(a)gmail.com> wrote: > i was tracking down a bug in the Linux kernel build system which seems > to be caused by a bug in Darwin. the kernel build system creates a > bunch of 0 byte files and then uses open(O_TRUNC) on them in order to > update the st_mtime field (which triggers make to recreate some object > files). on my mac mini, this all falls apart. is there somewhere i can file a bug report about this ? i'm really not familiar with Darwin development methodologies <http://developer.apple.com/bugreporter/> -Shawn _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… On 7/9/07, Mike Frysinger <vapier.adi(a)gmail.com> wrote: This email sent to site_archiver(a)lists.apple.com

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RE: Illegal Instruction
by Norm Green 09 Jul '07

09 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: open() fails to update st_mtime when used with O_TRUNC and 0 byte files
by Mike Frysinger 09 Jul '07

09 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=FUfQ5ybS2dIRUeMPSrj8g08FrLGQ0tuRMlVwA1z+s9WMhGxn075b0lGEWOLlGyy0jYab/5WaEw4uxpeFWyHPfoRwy0JIe+ZnZxSIATr5ArTn8oa+NEtl7PKim22a37H1bRKoeBGyT26x4GFAuFIGlTWrIK+SeSEfKbA6mo32cgE= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=a+sEuassKy6klkZx0mwksASwNWH4J/hlrHILsF9jIX2ttTsU3AM9XlrYzYMFi4S3fgs/pQtvhnQkE74heREDSU6ken7RCe4+xMlEvtsIsqr0D8WRdz6H1YM76Ac1suQwE+MtIyNtV2U0dV1OCfxgxaZHuUxcmVptPKSCGGY4AQA= i was tracking down a bug in the Linux kernel build system which seems to be caused by a bug in Darwin. the kernel build system creates a bunch of 0 byte files and then uses open(O_TRUNC) on them in order to update the st_mtime field (which triggers make to recreate some object files). on my mac mini, this all falls apart. is there somewhere i can file a bug report about this ? i'm really not familiar with Darwin development methodologies -mike _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… On 6/12/07, Mike Frysinger <vapier.adi(a)gmail.com> wrote: This email sent to site_archiver(a)lists.apple.com

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Illegal Instruction
by Heidi Zhou 09 Jul '07

09 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=pyfhnWCrdxWSk2E9xmMu+efSlPfJAjHNidvKkXgbBLZHgHdAtQ4UoyXzk6t7mLQXK/dni4ZvzdRT6RWuZJLf096dpsYcYiMk8tHJZVzT9xTFaQcV1Nufp3VLcSjzChElu8U0E+qtnaKUmBVT8cxkkHF5LKU4Ha2YVg7/v/Atk30=; Hello! I got Illegal instruction when I tried to run the small test program I made. The way of I compile and link is g++ -g -Wall -Iinclude -I./../include -DDarwin -DDEBUG -c test/test.cpp -o test/bin_osx/test.o ld test/bin_osx/test.o -o test/bin_osx/mytest -lstdc++.6 -lgcc_s.1 -lpthread Here is the information of my system $ uname -p i386 $ uname -v Darwin Kernel Version 8.10.1: Wed May 23 16:33:00 PDT 2007; root:xnu-792.22.5~1/RELEASE_I386 What I did is wrong that cause the illegal instruction? Thank you in advance for your help. Heidi ____________________________________________________________________________________ Get the free Yahoo! toolbar and rest assured with the added security of spyware protection. http://new.toolbar.yahoo.com/toolbar/features/norton/index.php _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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RE: dup2() Problem
by Norm Green 09 Jul '07

09 Jul '07

site_archiver(a)lists.apple.com Delivered-To: Darwin-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Problem while trying to Debug Kernel Panic with GDB using Two Mac's
by Duane Murphy 09 Jul '07

09 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com --- At Mon, 9 Jul 2007 10:45:13 -0700, Garth Cummings wrote: >Neither of those values is correct. Most boot-args are in the form >"key=value". For the debug flags, it's "debug=0x14e" or "debug=0x144". >The "-v" flag to specify verbose booting is a separate flag, so it has >to have white space around it such as "debug=-0x144 -v". Oops, a minus sign was inadvertently added to the string. The last example should be "debug=0x144 -v". I usually use "debug=0x14e -v". ...Duane _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Problem while trying to Debug Kernel Panic with GDB using Two Mac's
by Garth Cummings 09 Jul '07

09 Jul '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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